KR102533503B1 - Safety footrest protection system and method of safety footrest protection for railway platform - Google Patents

Abstract

The present invention relates to a safety scaffolding protection system and method of protecting safety scaffolding on a railway platform that sense the movement of a vehicle and forcibly lowers (or folds) the scaffolding. According to the present invention, the safety scaffolding protection system comprises: a detection module which detects the movement of a railway vehicle; a learning module which learns detection information from the detection module; and a control module which forcibly lowers the safety scaffolding when it is determined that the vehicle is moving according to the information learned by the learning module. Accordingly, it is possible to prevent not only damage to the safety scaffolding but also damage to the vehicle.

Description

Safety footrest protection system and method of safety footrest protection for railway platform}

The present invention relates to a protection system for safety scaffolds and a method for protecting safety scaffolds provided at railroad platforms such as subways. In particular, when a subway enters the range of a position detection sensor and stops at the correct position, the scaffold is raised (or deployed) and the scaffold is raised. When the position of the currently stopped subway is set as a reference point, and when the reference point is changed, it is determined that the subway departs and the platform is forcibly lowered (or folded). Safety foot protection system and safety foot protection method of a railway platform It is about.

In general, a train (subway car, railroad car) is a mass transport transportation means in which a high degree of safety and accuracy must be ensured as a top priority. is operated to make it stop within the station, and at this time, the stopped train must stop at the correct position within the station. That is, as shown in FIG. 1, in order to promote the convenience of getting on and off the passengers, the door 110 of the stopped train 100 is connected to the getting on/off part 210 at the rostrum of the platform 200. It should be able to stop in the right spot.

To this end, ATS (Automatic Train Stop: automatic train stop device), ATP (Automatic Ttain Protector: automatic train protection device), and ATC (Automatic Train Control: Many train operation control devices such as automatic train control device) and ATO (Automatic Train Operation) have been developed and used, and continuous research is being conducted to improve safety, accuracy and operation efficiency, and to provide a convenient driving environment. development is taking place.

The safety and accuracy of these trains are required throughout the entire process from departure to stop. In particular, safety and accuracy when stopping at the platform where passengers get on and off are more emphasized in terms of improving ride comfort and protecting passengers. It is a matter.

In reality, unsafe braking caused by inexperienced train driver or inaccurate control of the train operation control device causes passengers to be injured, and inaccurate stopping causes confusion on the platform, reducing operating efficiency and causing accidents. there is

In this way, when a train is stopped at a platform in a station, a brake device in the driver's cab is manually or automatically operated to stop the train in the station. In addition, in a railway such as a subway, when the distance between a vehicle and a platform is large, a safety footrest is installed at the platform for passengers to safely get on and off.

One example of such technology is disclosed in Patent Documents 1 to 3 and the like.

For example, in Patent Document 1, as shown in FIG. 2, while moving the body 140 along the transfer rail 130, the center mark ( 211), the triangular block for displaying the boarding direction at the edge of the platform 200 is imaged, and the image frame data of the center mark 211 captured at the fixed position pre-stored in the detection unit 160 and the image capturing unit 150 By comparing the image frame data of the center mark 211 captured by the camera, and if they match each other, the distance between the center position ('0') of the body 140 and the reference point ('C') at that point is determined by the railroad car. Disclosed is an automatic railway vehicle stopping position measuring device that automatically measures whether or not a railway vehicle is stopped in the correct position by determining an error distance ('C' to '0') out of position.

In addition, in Patent Document 2 below, a door control device for controlling the entrance and exit of a railway vehicle, a foot control device for controlling a safety footrest provided below the door, and a door control device when opening the door for passengers to get on and off the foot control device. After transmitting the footrest control signal to forward operation of the safety footrest, the door control signal is transmitted to the door control device to open the door, and when the door is closed, the door control signal is transmitted to the door control device to open the door. Disclosed is a linkage control system between a railroad car door and a safety footboard including a comprehensive train operation control device that transmits a foothold control signal and a door closing signal to the foothold control device after being closed to move the safety footboard backward.

On the other hand, in Patent Document 3 below, for safe operation on the platform through the interlocking of the safety platform and the screen door, a control signal for closing the screen door and a control signal for retraction of the platform safety platform are sequentially received at regular intervals, and then the train is operated. It includes an on-board control unit controlling to start and a frame installed on the platform when the train is stopped and a safety footrest that is drawn in or drawn forward from the frame and installed between the platform and the train to serve as a foothold, and the durability of the platform safety footboard is improved. Disclosed is a train signal control system in which a shock absorber for mitigating shock is provided at the corner of the platform safety platform in order to increase the height.

Republic of Korea Patent Registration No. 10-0807386 (registered on February 19, 2008) Republic of Korea Patent Registration No. 10-1172738 (Registration on 2012.08.03) Republic of Korea Patent Registration No. 10-1654348 (registered on 2016.08.30)

In Patent Document 1 as described above, there is a problem in that it is difficult to accurately capture the center mark because the body moving along the moving rail and the imaging unit installed on the body move due to shaking caused by the operation of the railway vehicle.

In addition, Patent Document 2 discloses a technology for securing the safety of passengers and preventing delays in vehicle operation time when passengers get on or off by linking and controlling the door of a railway vehicle and a safety footboard installed to prevent slipping under the door. , Patent Document 3 comprehensively determines the safe operation of the train, the state of the train door, the state of the screen door, and the retraction and withdrawal of the platform safety platform to secure the safety and reliability of the signal system, thereby preventing illegal departure of the train. Although disclosed for, the technology for preventing damage to the safety scaffold has not been disclosed.

That is, in the conventional location setting of the subway, after installing a sensor having a certain interval range, when the train enters the sensor range, it is determined that the train has stopped at the correct location. is determined to be moving (starting). Therefore, if the subway is located at the end of the sensor in the range of the sensor for determining the correct position, the starting state is not detected even if the train moves until it is out of the range of the sensor. There was a problem that it could break.

In addition, after the train stops at the correct position, the footrest rises, the train door (safety door) opens, passengers get on and off, and the train door (or screen door, safety door) closes, the footrest descends, and the train is operated in the order of departure. It should be. If the train is not completely stopped and is still moving slowly while the train is stopped at the correct position, the train is in the correct position (range: -400 mm to +400 mm) but does not stop. If it rises or operates, there is a risk of collision, so when there is movement, the footrest is raised so that it does not collide with the train. When this happens, the scaffold does not descend. At this time, there was a problem that the train collided with the scaffold when the train started without taking safety measures for descending the scaffold.

An object of the present invention has been made to solve the above-described problems, and a railway platform capable of preventing damage to the safety platform and the vehicle by controlling the elevation or descent of the safety platform provided at the platform in response to the entrance and exit of the subway vehicle. To provide a safety scaffolding protection system and a safe scaffolding protection method.

Another object of the present invention is to provide a safety scaffold protection system and a safety scaffold protection method of a railway platform capable of forcibly lowering a safety scaffold by learning detection information according to the movement of a subway vehicle.

Another object of the present invention is to provide a safety scaffold protection system and a safety scaffold protection method of a railway platform capable of generating a signal to completely stop and ascend the train when the safety scaffold rises by detecting the movement of a subway vehicle.

Another object of the present invention is to develop a railway platform that can prevent accidental contact between the safety platform and the train in advance by operating the safety platform to urgently descend when the movement of the train departs without the safety platform descending. To provide a safety scaffolding protection system and a safe scaffolding protection method.

In order to achieve the above object, the safety scaffold protection system of the railway platform according to the present invention controls the elevation or descent of the safety scaffold provided at the platform in response to the door of the railway vehicle to prevent damage to the safety scaffold during operation of the vehicle As a system, a detection module for detecting the movement of the railroad car, a learning module for learning the detected information by the detection module, and when it is determined that the vehicle is moving according to the information learned by the learning module, the safety footrest is forcibly operated. It is characterized in that it comprises a control module for lowering.

In addition, in the safety scaffolding protection system of a railway platform according to the present invention, the detection module is characterized in that it includes any one of a sensor array, a laser beam scanner, a lidar sensor, and a radar.

In addition, in the safety scaffold protection system of a railroad platform according to the present invention, the learning module learns the location information of the vehicle while ignoring the vibration of the vehicle after the railroad vehicle stops, and when it is determined that the movement of the vehicle has occurred, the safety scaffold Characterized in that the forced descent information of is transmitted to the control module.

In addition, in order to achieve the above object, the safety scaffold protection method of the railroad platform according to the present invention raises (or deploys) the scaffold when the subway enters the position detection sensor range and stops at the correct position, and when the scaffold is deployed, the current stop The location of the subway is set as a reference point, and when the reference point is changed, it is determined that the subway departs, and the scaffold is forcibly lowered (or folded).

As described above, according to the safety scaffold protection system and safety scaffold protection method of a railroad platform according to the present invention, when a subway enters the range of a position detection sensor and stops at the correct position, the scaffold is raised (or deployed) and the scaffold is When deployed, the location of the currently stopped subway is set as a reference point, and when the reference point is changed, it is determined that the subway is starting, and the footrest is forcibly lowered (or folded) to prevent damage to the safety footrest as well as damage to the vehicle. is obtained

1 is a schematic configuration diagram for explaining a stop state of a general railway vehicle;
2 is a configuration diagram for explaining an automatic vehicle stop position measuring device according to the prior art;
3 is a block diagram for explaining the configuration of a safety scaffold protection system for a railway platform applied to the present invention;
4 is a view for explaining the function of a sensor array as a sensing module according to an embodiment of the safety scaffolding protection system of a railway platform shown in FIG. 3;
5 is a diagram for explaining the function of a laser beam scanner as a detection module according to another embodiment of the safety scaffolding protection system of a railway platform shown in FIG. 3;
6 is a diagram showing an example of a structure of a Convolutional Neural Network (CNN) applied to the present invention;
Figure 7 is a view for explaining a process for protecting the safety scaffolding in the railroad platform according to the present invention.

The above and other objects and novel features of the present invention will become more apparent from the description of this specification and accompanying drawings.

As used herein, the term "railway" refers to a means of transportation, such as a high-speed rail in which trains run at a speed of 200 km or more in major sections, a subway operated in an urban transportation area for smooth communication of urban traffic, a monorail, a magnetic levitation train, etc. It means including transportation facilities for the operation of general railways and means of transportation excluding urban railways, high-speed railways and urban railways, and “vehicle” means one of several connected spaces such as 6 cars, 8 cars, and 10 cars as a means of transportation of railroads. It means, "Platform" means a station prepared in response to the door of a vehicle for passengers to get on and off the railway.

In addition, the rising (unfolding) and descending (folding) of the safety footrest at the platform is an expression according to the movement method of the safety footrest. The descent of can also be applied to a structure in which the safety scaffold is drawn from the vehicle toward the platform. That is, the elevation (deployment) and descent (folding) of the safety scaffold means an expression by a structure in which the movement of the safety scaffold is made in a folding or sliding manner according to the driving method of the safety scaffold provided in the platform.

In addition, the term "means", "module" or "unit" used herein performs at least one function or operation, and is implemented as hardware or software consisting of mechanical or electrical or electronic components, or implemented as a combination of hardware and software. A plurality of "modules" or a plurality of "units" may be integrated into at least one module and implemented by at least one processor, except for "modules" or "units" that need to be implemented with specific hardware. there is.

Hereinafter, an embodiment according to the present invention will be described according to the drawings.

Figure 3 is a block diagram for explaining the configuration of a safety scaffold protection system for a railway platform applied to the present invention, Figure 4 is a detection module according to an embodiment of the safety scaffold protection system for a railway platform shown in FIG. FIG. 5 is a view for explaining the function of a laser beam scanner as a sensing module according to another embodiment of the safety scaffold protection system of a railway platform shown in FIG. 3 .

A safety scaffold protection system for a railway platform according to the present invention controls the elevation or descent of a safety scaffold provided at a platform in response to a door of a railroad vehicle to prevent damage to the safety scaffold during operation of a vehicle 101. As a system, As shown in FIG. 3, the sensing module 10 for sensing the movement of the railroad car 101, the learning module 20 for learning the sensing information by the sensing module, and the information learned by the learning module Accordingly, a control module 30 forcibly lowering the safety scaffold may be included.

In the safety scaffold protection system of a railway platform according to the present invention, when the train 100 is stopped, the safety scaffold rises, the train door 110 is closed after passengers get on and off, and the crew confirms the descent of the safety scaffold and starts departure. However, it is provided to prevent damage to the safety footrest and the vehicle that occurs when the train 100 is started despite the safety footrest being in an elevated state due to a malfunction of the door sensor. Therefore, in this case, the movement of the train is sensed and the safety platform is forcibly lowered. That is, a configuration is provided in which the train 100 is started after forcibly lowering the safety scaffold by using and learning the detection module 10 that detects the movement of the vehicle 101 of the train 100.

The sensing module 10 may be installed adjacent to the getting on/off unit 210 at the edge of the platform 200 as shown in FIG. 1 or 2, and includes a sensing unit and a transmission unit, and the sensing unit is shown in FIG. 4 And as shown in FIG. 5, it will be provided with a configuration including any one of a sensor array 11, a laser beam scanner 12, a lidar sensor, and a radar to detect the movement (movement) of the train car 101. can

The sensor array 11 is prepared by arranging several detection sensors, for example, 6 detection sensors in FIG. 4, and its precision can be improved according to the number of detection sensors. Therefore, it is possible to detect a train stop deviation, for example, about 600 mm, according to the distance between the arrayed sensors. That is, the sensor array 11 can sequentially detect movement according to the sensor separation distance when the train stops and departs, and the detected movement signal is transmitted to the learning module 20 through the transmission unit.

In addition, as shown in FIG. 5, the laser beam scanner 12 may be provided to check the movement of the corner position of the train car 101, and the lidar sensor and radar are used to detect the movement of the vehicle in three dimensions. can be provided. That is, the laser beam scanner 12 can detect train stop deviations as well. In addition, a monitor or the like may be provided and operated as a display means for displaying motion information of the vehicle 101 detected by the detection module 10 in a station or the like.

The transmission unit may apply a short-distance wired signal line or wired communication with the learning module 20, and as wireless communication, for example, a narrowband Internet of Things (NB-IoT) method, a UNB (Ultra Narrow-Band) modulation method, Any one of a smart utility networks (Wi-Sun) method, a ZigBee method, an Industry-Science-Medical (ISM) band method, an RF communication method, and a Bluetooth (BLE) method may be applied.

The learning module 20 may be composed of a memory and a microprocessor, and after stopping the railway vehicle, learning the location information of the vehicle while ignoring the vibration of the vehicle, and forcibly lowering the safety scaffold when it is determined that the movement of the vehicle has occurred. Information is transmitted to the control module (30).

That is, the learning module 20 detects the sensor state of the detection module 10 when it receives the rising signal of the safety scaffold, and detects the change of the sensor in the sensing module 10 to detect the position of the first learned sensor. When moving to the sensor position of , it is determined as the movement of the vehicle 101, and this determination information is transmitted to the control module 30.

The learning module 20 can be prepared based on a Convolutional Neural Network (CNN) structure as a "deep learning module" so that vibration of the vehicle can be ignored, and this CNN is a type of Artificial Neural Networks (ANN). As a result, an artificial neural network is modeled after the structure of a neuron and is a network made to learn patterns or algorithms by imitating the connection structure of a synapse between neurons. As shown in FIG. 6, Based on the form of the input layer, hidden layer, and output layer, it can be divided into various types according to the method of each layer. In other words, CNN is configured to process, classify, and output input, feature extraction, and feature unchanged according to position change or distortion. 6 is a diagram illustrating an example of a structure of a Convolutional Neural Network (CNN) applied to the present invention.

On the other hand, in the above description, although the sensing module 10 and the learning module 20 are shown in a separate structure, the present invention is not limited thereto, and the sensing module 10 and the learning module 20 are integrally provided, and the learning module 20 is provided in a transmitter. The determination result of the module 20 may be provided in a structure to transmit to the control module 30.

The control module 30 controls the safety scaffold driving unit 40 shown in FIG. 3 according to the movement determination information of the train car 101 in the learning module 20 as described above to lower the safety scaffold (folded) state. It is forcibly driven to be This control module 30 may also be provided integrally with the safety scaffold drive unit 40 .

Therefore, since the separation distance is large until the train moves out of position and touches the excess sensor, the detection of train movement is very slow, so it is possible to solve the conventional problem that not only the safety scaffold may be damaged, but also the vehicle may be damaged.

Next, a safety scaffold protection method for a railroad platform according to the present invention will be described according to FIG. 7 . 7 is a view for explaining a process for protecting a safety scaffold in a railroad platform according to the present invention.

A safety scaffold protection method of a railway platform according to the present invention is a method of preventing damage to the safety scaffold during operation of a railway vehicle by controlling the raising or lowering of the safety scaffold provided at the platform in response to the door of the railway vehicle, the platform ( The motion of the train car 101 is detected by the sensing module 10 installed adjacent to the getting on/off unit 210 of 200 (S10). The detection in step S10 is performed every movement of the train car 101 .

On the other hand, in the learning module 20, after the train stops, the vehicle location information is learned while ignoring the vibration of the train (S20), and the movement of the train 101 is determined according to the motion information detected in the step S10. Do (S30).

When it is determined that the vehicle 101 is moving according to the learned information in step S20, the control module 30 forcibly lowers the safety footrest (S40) to prevent damage to the vehicle as well as damage to the safety footrest. can

Although the invention made by the present inventors has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments and can be changed in various ways without departing from the gist of the invention.

That is, in the above description, when a movement of a train departing is detected in a state in which the safety platform has not descended, the safety platform operates to descend urgently to prevent a collision accident between the safety platform and the train in advance. However, this It is not limited, and may be applied to a structure that detects the movement of a subway car and generates a signal to completely stop the train when the safety platform rises. Specifically, when the movement of the vehicle is detected by the detection module while the safety scaffold is raised, the control module transmits a detection signal to a train operation system such as ATO (Automatic Train Operation) to stop the train. It could be.

In addition, although the above description has been described as a configuration for detecting the motion of the train by the sensing module, it is not limited thereto, and as a method for detecting the exact location of the train, a signal from a train operating system such as ATO or a train in front, rear, or in the middle of the train has been described. It is also possible to detect the movement of the train by generating a signal whether the train is within the range of the fixed position with a fixed position sensor.

By using the safety scaffold protection system and the safety scaffold protection method of a railway platform according to the present invention, damage to the vehicle as well as damage to the safety scaffold can be prevented.

10: detection module
20: learning module
30: control module

Claims (4)

Controls the elevation or descent of the safety platform at the platform in response to the door of the railway vehicle to prevent damage to the safety platform and the vehicle that occurs when the railway vehicle is started despite the safety platform being raised due to a malfunction of the door sensor In the method of preventing damage to the safety scaffold during operation of the railway vehicle by
(a) detecting whether the railway vehicle enters and stops in the correct position with the detection module, and raises (or deploys) the safety scaffold with the safety scaffold driver when it stops at the correct position;
(b) the control module setting the position of the railroad car stopped in step (a) as a reference point;
(c) After stopping the railway vehicle, ignoring the vibration of the railway vehicle, and when the reference point set in step (b) is changed, the control module determines that the railway vehicle is starting and controls the safety scaffold driver to force the above A safety scaffold protection method for a railway platform comprising the step of lowering (or folding) the safety scaffold.
Controls the elevation or descent of the safety platform at the platform in response to the door of the railway vehicle to prevent damage to the safety platform and the vehicle that occurs when the railway vehicle is started despite the safety platform being raised due to a malfunction of the door sensor In the system for preventing damage to the safety scaffold while driving the vehicle,
A detection module for detecting the movement of the railway vehicle;
A learning module for learning the sensing information by the sensing module;
A control module forcibly lowering the safety footrest when it is determined that the vehicle is moving according to the information learned by the learning module;
The detection module detects whether the railway vehicle enters and stops in the correct position within the range of the correct position detection sensor, and when it stops in the correct position, the safety scaffold driver raises (or deploys) the safety scaffold,
The control module sets the position of the stopped railroad car as a reference point,
After the railway vehicle stops, vibration of the railway vehicle is ignored, and when the reference point is changed, the control module determines that the railway vehicle is starting and controls the safety footrest driver to forcibly lower (or fold) the safety footrest. ) A safety scaffolding protection system for a railway platform, characterized in that for
According to claim 2,
The detection module is a safety scaffold protection system of a railway platform, characterized in that it includes any one of a sensor array, a laser beam scanner, a lidar sensor, and a radar.
According to claim 2,
The learning module learns the location information of the vehicle while ignoring the vibration of the vehicle after the railroad vehicle stops, and transmits the forced descent information of the safety scaffold to the control module when it is determined that the movement of the vehicle has occurred. Characterized in that Safety platform protection system for railway platforms.

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